Shuttle-guard



P. 0. ROBERTSON.

SHUTTLE GUARD.

APPLICATION FILED mmze. 1921.

Patented July 19, 1921.

UNITED STATES PATENT orrics.

PHILIP O. ROBERTSON, OF ALLEN'IOWN, PENNSYLVANIA.

To allwhom it may concern:

Be it known that I, PHILIP O. RoBnRTsoN, a citizen of the United States, residing at Allentown, infithe county of Lehigh and State of Pennsylvania, have invented certain new andyuseful Improvements in Shuttle- Guards, of which the following is a specification; 1

This invention relates to "a shuttle guard forloomsgand the primary obj ect'of the inventionjresid'es in the construction of a simple yet effective means whereby a shuttle in flight willbe prevented from being deflected and thrown out from the loom during its passage across a lay thereby preventing damage to the loom and other operative parts as well asto the material being woven. In actual practice it has been found to be a very frequent occurrence during the op-,

eration of looms in the manufacture of silk, cloth or fabrics that the shuttles do not properly enter sulting in damage to the said shuttle and also the shuttle box as well as causing considerable delay in the operation of the loom.

The primary object of the invention is. therefore directed to a novel and improved protector or guide for the shuttle whereby the same will be directed in its proper path of movement to the shuttle box, consequently preventing the shuttle from wearing due to friction with the openings of the shuttlebox .--and 'inaddition preventing splintering or guard damage thereto with the incident damage to the material being manufactured and further resulting in the loss of time and expense due to improper operation. A still further ob'ec't of the invention resides-in the provision of a shuttle guard which may be freely raised by the shuttle and not act as a rigid but rather as a loose as distinguished from similar rigid designed for the same-purpose thus. preventing any possibility of the shuttle beammed or fastened in changing thev shuttle from one position to another with respect to the shuttle box and further allow.

guards coming 1 the weaver or loom operator to make such change as so desired with facility and ease.

the shuttle box. at times re-- SHUTTLE-GUARD.

Specification of Letters Patent. Patented J 1y 19, 1921, lApplication filed March 26, 1921. Serial No. 455,740.

Another and very important object of the invention resides in the provision of a shuttle guard which is extremely simple in construction, consisting of comparatively few parts therefor inexpensive to manufacture, highly efficient in operation and practical in use, capable of being installed on various types of looms, freely adjustable and easily mounted or removed with facility and ease and otherwise constituting an important auxiliary for silk weaving machines and the like rendering the same more efficient.

With these objects in view and others which will be suggested and manifest as the purpose and nature of my invention are revealed in the following specification and drawings, whereinI have shown a preferred embodlment thereof,

Figure lflis a front elevation of the lay and reed, broken off centrally and showing my shuttle guard mounted adjacent the ends of the shuttle boxes.

Fig. 2 is a vertical, sectional view showing the invention as applied to the sword arm and taken on the line 22 of Fig. 1. v

Fig. 3 is a vertical, sectional view through the shuttle guard as removed from the sword.

arm.

Fig. 4 is a front view thereof.

Referring now to the drawings, wherein like parts designate corresponding parts throughout the specification, numeral 5'designates a lay and 6 the sword-arm to which it is secured as at 7 S the swing reed hanger stand and 9 the shuttle boxes, all of which are of a well known construction and common to this type of loom. V

The swing reed hanger stand 8 above referred to, which is attachedto the top of the reduced end 9 ofthe sword arm by a casting 10 carries the novel and improved shuttle 10 whereby it may be readilyattached t0 he sword arm andalso 3 0 vent the shuttles 11 from moving out of their permitting the guard to be attached to various widths of swing reed hangers in the manner now to be described. 7

The top portion 12 of the casting is confined between the flanges 13, 141 of an L- shaped supporting member 15, the top of which is provided with an elliptical slot 16 for receiving the fastening element 'or locking bolt and nut 17 whereby'the casting and supporting elements are securely held in po sition. The supporting element 15 is also provided with anaperture in its top and near its outer end for receiving a freely and vertically movable bolt 18 which passes through an aperture in the inwardly extending flange 19 of the supporting element as clearly indicated by Fig. 8 of the drawing. The head 20 of the bolt 18 normally lies on the top of the supporting element 15, saidbolt supporting an arcuate block 21 to which it is threaded as at 22 which block is provided with a cover 23 preferably of leather or similar material fastened by screws 24 to said block in the manner indicated by Fig. 1 of the drawing.

By reason of its free vertical movement and carried by the'supporting element 15; it will be readily seen that the guard as positioned and mounted on the sword arm at the entrance of the shuttle boxes 9 will prepath in their flight since the said guard retains the shuttle in its horizontal position during its flight. v shuttles during their flight, is of course to fly upwardly and when the same engages the arcuate covered block 21, it will be prevented from moving out of its proper position and be guided thus preventing damage to the operative parts should the said shuttles be deflected from the machine. Since the adjustment of the guard andcasting permit both vertical and lateral movement of. the guard, it will be readily recognized that the same may be attached to various widths of swing reed hangers by the bolt and nut shown to meet the required needs and conditions of the particular type of machine where the shuttle guard is to be used. I In the accompanylng drawings I have lllustrated my invention. embodied in one formby-way of example, and which in practice has been found to be highly satisfactory in obtaining the desired results. It will be obvious however that other embodiments may be adopted and that various changes in the details of construction may be resorted" to by those skilled in the art without departing from the spirit and scope of the invention. It is furthermore understood that the invention .is not necessarily limited or restricted to the precise elements shown 'ex- "cept'fm so far as-such limitations are specified inthe subjectma'tter being claimed.

The tendency of the.

Having shown and described my invention, what I now claim as new and desire to secure by Letters 'Patent of the United porting element for preventing a shuttle from being deflected out of its true horizon- 2. A shuttle guard comprising a casting adjustably secured to the sword arm of a loom, a supporting element laterally adj ustable with respect to the reed frame of said loom and secured to said casting for suspension over the'entrance of a shuttle box, and

a freely movableguide supported 'near'the outer end of said element'for preventing a shuttle from being deflected out of its true horizontal flight. a

3. A shuttle guard comprising a casting adapted to be vertically adjusted-on the upper end of the sword arm of a loom, .a supporting element laterally adjustable with respect to the reed frame of saidiloom and secured to said casting for suspension over T the entrance of'a shuttle box, and a freely movable guide having an arcuate block at its lower end and supporting by saidelement for preventing a shuttle'from' being deflected out of its true horizontal flight. I

4-. Ashuttle guard comprising a casting adapted to be vertically adjusted on theupper end of the sword arm of a loom, an L- shaped supporting element having side flanges laterally adjustable with respect to f said casting for suspension overthe entrance of ajshuttle box, and afree-ly vertically movable guide having an a'rcuate, covered block carried by said supporting element for preventing a shuttle from being deflected out of its true horizontal flight.

5. A shuttle-guard comprising'a castingadapted to be vertically adjusted on the up- 7 per end of a sword arm offa' loom, an L- shaped supporting element having sideflan'ges laterally adjustable with respect to said casting for suspension over the entrance .of a shuttle box, a freely movable bolt sup ported ne'arthe outer end of the supporting member and a detachable arcuate guide connectedto said bolt for preventing a shuttle from being deflected out of its true horizontal flight. j r

6. A shuttle guard comprising a casting shaped, substantially wide supportingelementfhavingside flanges and a "slotin the top thereof for' adjustable connection'with adapted to'be vertically adjusted ontheup-f per end of a sword arm of a loom, an -L- said casting whereby the said element may able with respect to the reed frame of a loom be suspended over the entrance of a shuttle and adapted to be secured to a sword arm box, a freely movable bolt supported near of said loom, and a guide carried by said the outer end of the supporting member supporting element for preventing a shuttle 5 and a covered, arcuate guide detachabl confrom being deflected out of its true horizon- 15 nected to said bolt for preventing a s uttl e tal flight.

from being deflected out of its true horl- In testimony where0f,I aflix my signature zontal flight. hereto. 7

7. A shuttle guard comprising a casting 10 and a supporting element laterally adjust- PHILIP O. ROBERTSON.

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